Throw-out mechanism for printing-presses.



J. D. 'REIFSNYDER & H. G. SCHWE'RDTL'. THROWT'O'UT MECHANISM FOR PRINTING PRESSES.

A'PPLIGA1'ION FILED FEB. 26, I914.

Patented Feb. 15, 1916.

4 SHEETS-SHEET 1.

z gam mzzze J. D. REIFSNYDER (I: H. G. SCHWERDTLE. THROW-OUT MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED FEB. 26. I9I4.

Patented Feb. 15,1916.

4 SHEETS-SHEET 2.

J; D. 'liElFSNYDER & H. G. SCHWERDT LE.

THROW-'OLIJTMECHANISM FOR PRINTING PRESSES..

' {APPLICATION FILED FEB. 26. 1914.

1,171,804. r Patented Feb.15,1916.

4 SHEETS-SHEET 3.

u-I i I I I I i. W 4 I.

J E'qfrnyder fi 6% JZ/awerdZZe awwwtoz J; D. REIFSNYDER & H. GQSCHWERDTLE. THHOW-OUT'MECHANISM FOR PRINTING PRESSES. I APPHCATION mu) FEB. 26 1911.

1,171,804. ,Patented' Feb. 15, 1916.

4 SHEETS-SHEET 4:

SPA? OFFICE-1 S HWERD'TIQE, or @HILADELPHIA; PENNSYL H may: Fen ,mmTiNG-P EQ SQ erative position. Fig, 3 19; an enlarged detail eectionail View of a portion the feeding mechanism, Fig. ,4: ise toppla'n viewpf the I salrie. 'Fig. 5 is'a detail view showing-how a the feed iroilersicontact to clese 'the electrical circuit th'ereth'ro ligh, Fig. 6 is a plan View of theretetihg means-and mechanism cps;

erat'e'dthereby foi: causing the eepara'iaionof thefc rm and impression cylinder-S. Fig, 7

' ,is'aqsectionai' View of thesame on the line u'Z- 'Z, Fig. 6; Fig. 8 "is a, sectional View ony I 1 1 the line 8-8 (if'the gimme figure. Fig. 9 isa J 6. Fig. 10 ii; a diagrammatic View showing;- 't heelect-i'ical circuit for causing the opera fil -tien'cf the stop mechanism. r i

"ln the drawyings 15 indicetesfthe 'r nainf 'fremeof a printing press in lthetop; of I -,Whieh ere' mminteiiia fbrm cylinder 16, an

"o fi' 18 arranged in pzimlleliwithitheiruries lyingiinefcoihmon horizontal pleii'ev The v journa e 19 cfthe form cylinder revolve in wfixed, awni g 20 near the "rear end of the main frame 15. Thejpurnals 21 of the :unt preSsicn cylinder 17 turn in a journal bear- .j one on each side of the machine respectively with the journ'al bearing ahd the-main whiehcn being moved longit iidinallypper" ates; the tcggle and causes the jcu rnal bearings to slidecn their wayis26i 'In the active: 1

' position of the throw-out (1h han'isin othe ;.1oo

press each;togg1e.27 liesin etmi ghhiine'.

" asin Fig. 1, and is 'prventedffroniimoying.

bolt '31 held immovable by a lock nut; j f against Wvhich .thetepiof the toggleehutsgl'pii When the red iiOispulled deiifhw'ard;thef' toggle will assume thehanguhir po s'ificn -eh0wn jinTFig; ,2, whereby,the jbiirhal bear- MiIT-H COMPANY, OF SUMMEKDALE, BENNSYIJ- ecifi'cefihn ofj Lether Patent. Feb 15,1916

1 impression cylinder 17 and-a; revolvingtake: i

ingflQ pneach; side of the machine each of i f comprisingtwoiinks28, 29,-nreeO-rinec3td zihovefthis position by an adjjilstahle stop i i 'idle link bar 35,

. and on the opposite end a diameter asthegear wheel 38, and therefore which passes a cross-shaft driving shaft off shaft.- are of the ings 22, 24, are, with the cylinder 17 and take-off 18 drawn forward and away from the form cylinder 16a suiiicient distance to. prevent an impression being made on the blanket of the impression cylinder;

The rod 30 may be moved automatically,, as will be hereinafter described, or manually by means ofa lever 32 to which the lower end of the rod 30 is attached, said lever'being fulcrumed to the main frame 15 at 33 The lever 32 is preferably made in the form of an elbow lever .the shorter arm 34 of which is pivoted to one end of a normally vided'with a horizontal 'slot 36 through 37 journaled in aflixed thereon a revolved by 'a'pinion 39 on a 40, on one end of which is a hand wheel for manually turning the same,

drive pulley, not shown, or other means for imparting motion to the press. The pinion 39 also meshes with a gear wheel 42 on one end of the form cylinder 16, said gear wheel beingthe'same the main frame 15 and has gear wheel 38 rotates at-the same speed and in the same .direction at gear wheel 43 on the end of the impression cylinder 17 is driven by the gear Wheel42 on the form cylinder, while the take-off 18 is turned by the gear wheel 43 engaging the gear wheel 44 on the take- Thegear wheels 42, 43,- and 44 same diameter, and therefore the three members'16, 17 and 18 rotateat equal speeds.

moving part preferably driven continuously when provide an actuating part Andif the single moving part is a cam, the 'resistance'to rotation of the press is the We are aware that mechanism for this general purpose has been employed, in which a number of partsare kept continuously in motion when the press isdriven; and other parts areQa-rrangedto cotiperate with this mechanism in such a way that if a sheet fails to feed into the press, a connection is made automatically from the moving mechanism to the other parts which operates to separate the cylinders. In practising our invention, We prefer to provide a single a cam which is g the press is being driven, and near the position of this camwe the movement of which by the cam imparts a forcefrom the cam, which forcjf separates the cylinders. In this Way we siinplify'the modeof operation and reduce the number of moving parts.

same in anyposition of its cylinders; in. other words, thereare no continuously i'eciprocating parts with their consequent unbalancing eflects. I

Mounted on the "shaft 37 and turning therewithis a cam 45 more clearly shown in Figs. 6, 7,8 and 9, against the periphery of whali rb iase het marae its other end being pro-f when ' ing the roller 46 will.

the impression cylinder link bar 35 is a '65 of which extends through the link bar and is provided on its inner end with a groove 67in the hub of the roller 46is n1oved into the path p sa he st r d m g ec,

at forward to rock the elbow lever 32 and through the connections described withi draw the impression cylinder 17 from operative engagement with the form cylinder 16.

The roller 46 so long as it is in engagement with the cam 45 is held in contact therewith by a spring 47 or which, as the cam the link bar 35 to moveback and forth in a straight line and the impression cylinder 17 to vibrate into and out of operative engagement-with the form cylinder. The roller 46 stands normally at one side of the cam 45 and out of engagement therewith, and i only. moved into position to be operated it is desired to separate the. form and Impression cylinders. The means for movnow be described.

' Overlying the impression cylinder 17 and revolving take-off .18 ing. pivoted frame 48 in which is mounted a sliding feed table 49, see Fig. 3, and feed rollers 50, 51, and 52. The feed roller 51 is positively driven ,from

through an idle gear 53 engaging a gear wheel 54 on the shaft of the roller 51. by means of a rack 49 on table engaging a pinion 50 the feed roller the sliding feed on the shaft of pair of arms 55 secured to a rocking shaft 56 and is moved to and from the feed roller 51 by the rocking of said shaft which has fastened on one end a telescopic arm' 57 formed of two members 58 and 59 the former of which is attached to the shaft 56, and the latter slidably connected to the fixed member and movable longitudinally thereof of contact with the feed roller 51,-or thesheet thereon to be printed.

other suitable meansv continues to rotate causes is an upwardly swing- I the gear Wheel 43 on The; feed roller 50 is turned 50, see Fig. 3. The feed roller 52 is mounted in the outer end of a Lie 1 Bolted securely on the outer side of the solenoidmagnet 64 .the core yoke 66, the fingers of which yoke engage a roller 46 that rotates freely on a stud 68 projecting inwardly from the link relation with the cam 45 or out ment, therewith as shown in Fig.

bari35, and saidroller can also be moved longitudinally on'said stud, that it may be brought into operative len stee slides the/roller 4:6 into line with the cam the cir uitjisicompletedtherethrough draws its core 6gj inwalidlyytheyoke 66 of wvl11ch 45, and-'atythe proper time said-cam'forces the roller, fth.ei. li nkbar and; other parts carried th erehy longitudinally as hereinhe fore descril'ied iniorder to separate the formand impression cylinders- Upon breaking v v the electrical a circuit-through the solenoid,'

theroller this moved to the position shown in Fig. 6 by a spiral spring v69'surrounding I the core hetweenfthe, yoke and the link bar,'

and the impression cylinder and the other associated parts will thenhe automatically. restored'to normalposition by meansof the spring 4:7, w In order to control the "circuit throngzgh the electro magnet automatically by the; sheetto be printed, Wepr-efer to employ" in the el ectrio circuit," two conductive parts Whichare piievhnted vfrornloeing in contact by the sheet tobe printed. In the absence of the sheetfthese partscgme together' and close madman. For example,- this may' h'efi done as follows: Thesheetfeed rollers and 52 are both made. of metal, the latter roller which s amed} byt-he arms 55 is illjsnlated from said arms by nonconducting "bearings '10, see 1 0, A- finger 7-1 is in contact with theqfee'd roller 52 or its journal,

from which a Wire passes to ahattery' or other-source of electficahenergy, thence to the solenoid and from lillGz'SOlIlOldllG the the electrical time; thrdiigh the solenfoid feed/roller 51f. llYhenthe'press is operating and the sheetsynassing properly over the 'roller '5l, the ro le 52 as it.- ivibrates to and from the roller fil vill bear on'theisheetms 'itpasses thronghand thus insiilatethe two rollers, but, should;-

sheetnfail to he prop .erly fed between the feed FOIlGISifil ilHCl 52 the metaliroller 52ml] be broughtiritocontact with the metal roller-hi, thes -closing and the 'l-attendraWing its core inwardfiwill move the roller- 446' into position to be-oper ated by the 45,. and thnscans'e 'the impression cylinder to he moved out of contact "with the form'cylinden hnt without-stop- --""ping the rotation offeithen. The parts are so timed that the cani63actLiatesthe arm 57 to throw the feed'roller' 52 into engagement with the feed rollerl 51 only when a sheet: is passing or should. pass therebefvveen. Furthermore theflcam 451 111. act .on theroller ifi'only yyhen theflfornqoon thetform to the printing mechanism.

' J v 1 Q ina'lns at rest and is moved only when a sheet to be printed fails. to be properly fed.

- In the present embodiment :of the inventiori, it is evident that When-the press is running, bn'tlnzithout hayingrsheets fed to it to he printed, the c'ir cnitremains clo'sed and the roller, ,tGruns constantly in contact with. the camvfand nderthese conditions the spring t'Z t ends o noi e the rock-lever 34 toward theQIe-itQa-ndthereby'holds the rollenon the cam of course, as the cam rotates it will then reciprocate the link bar 5 35 at every revolntioni That is, at each "revolution the .throws the cylinders apart, .and 'wlienfthe gap of the cam is passing the roller, the spring 47 restores or retnrnsQthe cylinders itothe'ir normal iposition for printing. This to and fro move:

merit of the" impression cylinders prevents its ,face frombecoming smeared with the ink'fon the typeof, the form; vcylinder. It l with ink on their rear faces, i

It is iinderlstoodthatthe embodiment of the invention described herein is only one of the many'einbodimentsor forms the invention mayft'ake and We do not Wish to be limited in the practice of the invention, nor' in'o'ur claims, to the precise embodiment described. i i

What We claim is 1-5- 13111 a printingpressin combination; a form 'cylinderf an impression cylinder inountedin hearings movable toward and froirithe said form cylinder to bring the cylthis occurredfthe sheets subsequently passing through the press would be smeared indersinto and out of coiiperative printing relation,'*= ;means for feeding sheets to .be

printed tothe impression cylinder, mechf 'anismfor separating the cylinders embody- ;ing a crankihaving an operative connection With the mipres'sion cylinder, a normally idle reeiprocatory link havinga connection 'wyith said crank, a rotary 7 cam dr1venp9si-, 1 'tlvely'by the press when the pr ess'is in -oper-' ation; ala'terally movable actuating part car-' ried by the'said l ink and positioned adjacent to hnt'normally outkof line .With the petrolledfmeansrendered operative upon the I failure of asheet to be t ahen bygthe impression cylinder, for 'Ihoyi'n'g the said actuating part inlinewith'the periphery ofthe cam ,avherehy jthe siid gnoi'inally'idle link Will he zxi-eci' procate'd to a'ctiiate the-connections be- "rank-fand the cylinder separating m ter separating said cylinders ineluding a laterally movable actuating part,

electrically actuated means for laterallv printingpress, in combination}- a a ii-feeding; Sheet'siof paper between ir s to beprinten upon}thereby,

moving said actuating part, a cam driven positively by the; press when the press is driven, and arranged to engage said actuating part when moved laterally and positively impart a force tosaid mechanism and tonne of said cylinders which separates the cylinders, a circuit passing through said electrically actuated m'eans, said printing press having two conducting parts in said circuitand arranged to beseparated by the sheet to be printed, whereby the absence of a sheet to be printed permits contact between said conducting parts and closes the circuit;

3. In a printing press, in combination, a form" cylinder, an impression cylinder 'cooperating therewith and adapted to be moved into and out of printing engagement with said form cylinder, said impressioncylinder ha ving movable bearings, mechanism for'inoving said bearings to separate the cylinders including a laterally movable actuating part, electrically actuated means for laterally moving said actuating part,-a

cam driven positively when the press is v of a sheet to be printed permits contact between said conducting parts and closes the v circuit.

In a printingpress in combination, a jform cylinder, an impression. cylinder 00-- operating therewith and movable to andfrom said form cylinder, revolving means including a cam arranged to be continuously driven when the'c'ylinde rs are rotated,

Y said-impression cylinder having movable bearings, a series of levers connected to said bearmgs'for movingthesame to and from the fornr'c'ylinder, an electro-magnet mount-- inders, and a circuit including ed on one of said levers and having a sliding core, a roller movable by said core whenthe electro-magnet is energized into e'ngage ment' with said cam to operate 'said,,,levers and separate the form and impression cyla, f' conductive parts adapted to be heldfapart by the sheet tobe printed, I

5. In a printing press, in combination, a

form cylinder, an impression cylinder, mechanism for'feeding sheets of paper between "said cylinders to be printed upon thereby,

mechanism for separating said cylinders including a laterally movable actuating part,

"a cam adjacent to said laterally movable part driven positively by the press when the pressis driven, and normally having its edge projecting in the path of and preventing the. lateral movement of said.,-ni ovable actuating part,'electrically actuated means for laterally moving said actuating 'part, said camv being arranged to engage said actouting part when the sameis moved laterally, and positively impart a force there- "through to said mechanism, which force separates the cylinders, a circuit passing through said electrically actuated means, said printing press having two conducting parts'in said circuit and arranged to be separated by-the sheet to be printed, whereby the' absence of a sheet to be printed permits contact between said conducting parts and closes the circuit and moves said actuating part laterally when said cam 'will permit said lateral movement.-

6. In. a p'rinti mechanism including a pair of rollers movable to and from each other, a form cylinder,

7 an impression cylinder drivenfrom said forms cylinder at the same speed, and adapted to be moved into an dcout of. printing, engagement therewith, driving means for the form cylinder,-, rotating means movable by said driving meansin; unison with the form cylinder,'and provided with a cam, means connected to-the bearings of the impression cylinder for separating said cylinder from the form cylinder, and an electro-magnet device carried by said means for causing said cam to operate the meansand separate said cylpress, ;a sheet feeding; I

inders when" the feed rollers'contact to close the circuit through the electro-magnetic device;

7. In a printing press, a slieet feeding mechanism including a pair of metal rollers movable to and from each other, and form ing part of an electric circuit, a. form cylinder, an impression cylinder driven bysaid .form cylinderand movable to and from the same, driving means for the form cylinder, revolving means including a cam geared to said drlving means and rotatable 1n unlson with the form' cylinder, a series of levers connected to the bearings ofthe impression cylinder for moving the same to and, from the form cylinder, anelectro-magnet mounted on one of said levers and having a sliding core, and a roller movable by. said core when the. electro-magnet is energized into ,engagement with said cam to operate said levers and separate the form and impression cylinders.

8. In ;a printing press, in combination, a

form cylinder, an impression cylinder, mechanism for feeding sheets'of paper between said cylinders to-be printed' upon thereby, mechanism for separating said cylinders, a single moving part driven positively by the press when the press is driven, electrically actuated means for causing said moving part to actuate said mechanism and impart a force thereto,'which force separates said cylinders. and means 'fonclosi'nga circuit through said electrieallyiactpated means controlled by the 1c the press when the press Q bar connected with said lever, a roller car l Tied by said 1ink=bar and adapted to be 11; a printing press, in combination, a

5 form cylinder, all-impression cylinder, mech- "a'msm for feeding sheets of'paper between said cylinders to be printed ilpon thereby, a.

lever,,means actuated thereby fer separating said eylinders,' a cam drivenpesi'tively by is driven, a link moved into the path of said cam so as to be actuated thereby, an electro-m'agnetfor 15 moving said roller laterally to bring the same into thepath of said earn, a circuit passing through said eiectro-magnet, said printing press having two ccniiuctingi parts in said circuit and arranged to be separated by the sheet to be printed, whereby the absence cf a sheet to be printed permits contact between said conducting parts, closes said circuit, moves said roller iaterally and enables said cam,t0 impart a force through said link bar to said iever to separate said cylinders.

In testimony whereof We have hereunto set our hands in presence of two subscribing witnesses,

JAMES D. REEFSNYDER.

HENRY Gr. SCHWEWTLE.

Witnesses:

CARL E. SGHAEFFER, SILAS E. CHILD. 

